// BMICalculator.java
// calculates the BMI based on height and weight

// by John Doe

public class BMICalculator {

  public static void main (String[] args) {
   
    // declare variables
    double height; // in inches
    double weight; // in pounds
    double bmi;
    
    // compute BMI
    height = 68;
    weight = 100;
    bmi = weight / (height * height) * 703;
    
    // print results
    p("Height: " + height);
    p("Weight: " + weight);
    p("BMI: " + bmi);
    commentOnBmi(bmi);
    
    // new results
    p("After a lot of eating...");
    weight = weight + 40;
    bmi = weight / (height * height) * 703;
    p("Height: " + height);
    p("Weight: " + weight);
    p("BMI: " + bmi);  
    commentOnBmi(bmi);
  }
  
  public static void commentOnBmi (double currentBMI) {
    if (currentBMI < 18.5) {
      p("You seem to be underweight.");
    } else if (currentBMI > 24.9) {
      p("You seem to be overweight.");
    } else {
      p("You seem to be just right. :)");
    }
  }
  
  public static void p (String s) {
    System.out.println(s);
  }
  
}